[jdk11u-dev] RFR: 8316973: GC: Make TestDisableDefaultGC use createTestJvm [v2]

[Andrew Lu]

> I backport this for parity with 11.0.25-oracle.

Andrew Lu has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'openjdk:master' into backport_8316973
 - Backport 5f4be8cea980b3c2e8e5fb2067dc64b62fa0245c

-------------

Changes:
  - all: https://git.openjdk.org/jdk11u-dev/pull/2904/files
  - new: https://git.openjdk.org/jdk11u-dev/pull/2904/files/f6f041db..b479655c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2904&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2904&range=00-01

  Stats: 617 lines in 7 files changed: 609 ins; 0 del; 8 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2904.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2904/head:pull/2904

PR: https://git.openjdk.org/jdk11u-dev/pull/2904